@article{WilhelmGebertRegenstein1997,
  author    = {Wilhelm, Hans E. and Gebert, Horst and Regenstein, Wolfgang},
  title     = {Effect of substituents on viscosity dependence of fluorescence and on the S1 - T1 energy gap of Donor-acceptor substituted trans-stilbenes},
  year      = {1997},
  language  = {en}
}